Journal adjustment for arms of multiple-spindle drills



E. W. CLEVELAND.

JOURNAL ADJUSTMENT FOR ARMS 0F MULTIPLE SPINDLE DRILLS.

APPLICATION FILED SEPT-15.1919.

Patented Apr. 18, 1922.

UNETED STATES ersia-r orFicE.

EDGAR W. CLEVELAND, 0F HOLLAND, MICHIGAN.

Specification of Letters Patent.

Patented Apr. 18, 1922.

Application filed September 15, 1919. Serial No. 323,782.

To all whom it may concern:

Be it known that I, EDGAR \V. CLEVELAND, a citizen of the United States of America,

residing at Holland, in the county of Ottawa and Stateof Michigan, have invented certam new and useful Improvements in Journal Adjustments for Arms of Multiple- Spindle Drills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will on able others skilled in the art to which it appertains to make and use the same.

This invention relates to a journal adjustment for the arms of a multiple spindle drill and is concerned in the provision of a very simple and particularly effective form of adjustable connection between the ends of the arms of said multiple spindle drill and the journal boxes carried at the ends of said arms in which the drill spindles are mounted. In multiple spindle drills a number of arms are used to carry the drills, the, arms being adjustably mounted on a com-- The drills car-- mon head orother support. ried by the drill spindles are usually of different length and it is necessary, many times, to drill holes in the work to different depths. From this it follows that the journal boxes carrying the drill holding spindles must each be Vertically adjustable on its respective arm. It is also necessary that such journal boxes shall be quickly and easily adjusted and that the means by which this adjustment is accomplished shall be readily accessible so as to be easily operated whenever necessary. In the present invention a construction has been devised in which the attainment of all of these desired ends is accomplished while the construction itself is relatively simple and economical to manufacture; Various other objects and purposes than those specifically stated will appear fully and in detail as understanding of the invention is had from the following description taken in connection with the acconr.

' anotherv T-slot.

Fig. 41 is a partial section and end elevation taken on the broken line 41-& of Fig. 1.

Fig. 5 is a View similar to Fig. 1 illustrating a modification in construction.

Fig. 6 is a like view illustrating a still further modification in construction; and,

Fig. 7 is a plan of the construction shown iii Fig. 6.

Like reference characters refer to like parts in the different views of the drawing.

At one end-of the arm 1 a member 2 is mounted, it being provided with a journal bog: 3 in which adrill spindle 4 is rotatably mounted, the same carrying a drill receiving socket 5 at its lower end. The drill spindle is adapted to be held in vertical position.

The member 2 lies against the end of the arm and is adapted to be adjusted to different positions vertically with respect to said arm. The adjacent contacting parts of the arm and of the member-2 are formed with slots 6 and 7 adapted to come into conjunction with each other and in which a bar 8 may be located, the same being of a thicknose to practically fill the slots and hold the member 2 against any lateral movement with respectto the arm. At its lower end bar 8 is turned to the rear and formed with a cylindrical projection 9 which is threaded for a distance from its end. This part 9 extends through an elongated slot 10 which joins with theslot 8 at its upper part and which is made through the downwardly extended portion 11 ofthe arm, as shown.

The slot 6 at its upper part and within the arm 1 is widened as indicated at 12, whereby a Tslot is, made. Likewise the slot 7 is widened at each side at the forward portion thereof and at the lower portion of the member 2 as indicated at 13 making The bar. 8 at its upper end is turned to the rear and has projecting portions 14 extending laterally at the end thereof which portions are received in the widened part 12 of the T-slot in the arm 1. A projection 15 is made on each side of the bar 8 substantially at its middle point so that the same extends into the widened portion 13 of the T-slot in the member 2. A nut 16 is threaded onto the projection 9 and is adapted to tighten against the washer 17 bearing against the part 11 of the arm 1.

With this construction, when the nut 16 is tightened, it is apparent that the member 2 carrying the drill spindle is brought against the end of the arm. 1 and is heldsecurely against any vertical movement, while a 1005- ening of said nut 16 releases the same, permitting the projections 1 1 to traverse the part 12 of th'e T-Slot) in the arm in lowering, the drill or the projections 15 to traverse the part 13 in the T-slot in the member 2 manufacture and assembly of the parts is very simple. I

in Fig. ashght modlfication in: construetion is shown, the bar S taking the place of the bar 8v and being pivotally mounted at its upper end at 18 to the arm 1.

The widened portion 12 making a T-sl ot in the first construction is not present in the construction shown in Fig. 5, but the slot 6 is cut a little deeper at its upper end to permit the pivotal attachment of theupper end of the bar 8 Likewise the T-sl'ot in the part 2 extends the full height thereof as indicated at 13. This gives a. greater range of adjustment of the journal box than would be possible if the T-slot was only of-the length shown in Fig. 1. The operation in adjustment of the journal box and the drill carried thereby, is substantially identical with that of the construction shown in Fig. 1. I

In Figs. 6 and 7 a still further modification of construction is shown, the bar 8 being; pivotally mounted on a fixed pivot 19 between its ends onthe member 2. The T slot in the member 2 is not used and the slot 7 is of greater depth than the slot 7 in the construction shown in Fig. 1, permitting the vertical portion of the bar 8" to be'entirel)v received within thepart 2. The upper end of the lever 8* is formed with lateral pro jections 1-1- received in the wider portions 12 of a T-slot in the end of the arm and action is in all respects similar to that of the constructionshown in Fig. 1, except that the bar 8 is fixed. except for a limited pivotal I mo .'ement, on the journal boX carrying memher 2.

These constructions are very effective and very simple in operation and com pletely housed within the arm and journal box and out oil. sight. In Fig.7 T have. shown the rear side of the' journal carryinginember 2 as guided between projectingv lips ontheend of the arm 1. This is not really necessary as the bar 8 serves asa guide for the journal member2 holdingv it against any lateral tilting action. There is nothinginthe construction to get out of order and the ad ustment can be qu ckly and easily affected by merely loosening the nut 16, moving the journalbox to the desired place and then tightening-the nut, This nut is always accessible; and may be quickly and easily operated. The principle of operation is the same in all three constructions and so far as the operator is concerned, what he has to do to efiect adjustment is the same with any of the three constructions. The invention is defined in the appended claims and I consider myself entitled to all forms and modifications of structure which fall within their scope;

I claim:

1. In combination in a multiple spindle drill, a supporting arm, a' drill spindle ournal member vertically adjustable in relation thereto and means for clamping the ournal member to the arm comprising a bar 10- cated between the arm and journal member and seated at its upper'end 1n the arm and between its ends against the journal memher. said bar at its lower endbein'g turned to the rear through the arm and receivinga nut, tightening or loosening of which will clamp or release the journal member, substantially as described.

2. In combination, in a multiple spindle drill, a su iiporting arm, a journal member for carrying a vertical spindle vertically adjustable relatively there-to and located atone end of the arm, and an elongated member disposed vertically between and housed between the end or" the arm and the 101 11131 member and operatively associated with said arm and journal member for releasably clamping: the journal member to" the arm. and holding it against movement with respect to the arm, substantially as described. 1

3. In, combination in a multiple spindle drill, a supporting arm, a journal member located atone end of the arm and vertically adjustable relatively thereto, said journal member and arm havlngslots at theirad a cent tacos in which a bar is located; means for opcratively joining'the upper end of the bar with the arm, meansfor operatively ]()H]1UI,tll0 bar intermediate its ends to' the journal member, said bar at its lower end being turned to the rear and passingthrough a downward extension tothe arn and a nut threaded on the lower end of the bar tobear against said lower extension to the arm, sub

stautially as and For the purposes described.

4:. In combination. in a m iltiple spindle.

drill, a. supporting arn'ji, a, journal meinber. adapted to carry a rotatable spindle located at one end of the arm and adjustable vertically relative to' the arm, said" journal member and arm at their adjacent faces being provided with slots in conjunci101]. with each other, av bar located in said slots, means for operatively joining thebar at a point between lts-ends with the "jourl nal member. whereby said ournal member may be moved vertically with respect to :thc-

bar, means for operatively joiningith eup per end of the bar with the arm, and means" at the lower end of the bar operable to draw the journal member against the end of the arm and clamp it firmly in position with respect thereto, said mjeans being releasable to permit adjustment oi the journal member, substantially as described.

5. In combination in a drill, an arm, a drill spindle carrying member located against one end of the arm and adjustable vertically with respect thereto, a bar located between the arm and the spindle carrying member, means for pivotally and slidably mounting the upper end of the bar on the arm, means for pivotally and slidably mounting the bar at a point between its ends on the spindle carrying member, and releasable means at the lower end of the bar engaging against the arm for securely clamping a spindle carrying member against the end of the arm, substantially as and for purposes described.

6. In combination in a drill, a supporting arm, said arm at one end being provided with a T-slot extending downwardly from the upper side of the arm for a distance, and with a downward extension having a vertical slot therethrough, a journal member adapted to carry a drill spindle located against the end of the arm, said journal member being provided with a vertical slot adapted to come into conjunction with the slots in the arm, a bar located in said slots in the arm and journal member, lateral projections at the upper end of the arm extending into the wider portions of the T-slot in the arm, means for operatively joining the bar between its ends to the journal mem ber, said bar at its lower end being turned to the rear and passing through the vertical slot in the downward extension to the arm, and a nut threaded on to said lower rearwardly turned end of the bar, substantially as and for the purposes described.

7. In combination, in a drilling machine,

a supporting arm, said supporting arm at one end being provided with a T-slot cut vertically in the arm from its upper side (lowi'iwardly tor a distance, a downward extension to said end of the arm having a vertical slot therethrough, a journal member located against the end of said arm and provided with a slot cut vertically in the side thereof coming against the arm, the lower portion of said slot being formed into a T-slot, a bar located between the and journal member and inthe slots thereof,

lateral projections to the upper end of the bar extending into the wider portions of the T-slot in the arm, similar lateral projections on the bar between its ends extending into the wider portions of the T-slot in the journal member, said bar at its lower end being turned to the rear through the slot in the downward extension to the arm, and a nut threaded on to the lower rearwardly turned end of the bar, substantially as and for the purposes described.

8. In a device of the character described, an arm, a journal member located against and vertically adjustable with respect to the arm, a bar between and housed within the arm and journal member, and means connecting the bar to the arm and to the journal member for releasably binding said journal member against the endofthe arm and permitting the journal member to be moved vertically with respect to the arm when released, substantially as and for the purposes described.

9. In combination, a supporting arm, a drill carrying spindle journal member located against the end of the arm, a bar operatively joined at a point between its ends to the journal member and-having slidable con nection to the arm at its upper end, said bar at its lower end extending through a downward extension to the arm, and. releasable means on said lower end of the bar for clamping the journal member to the arm or releasing the same for verticaladjustment with respect to the arm, substantially as and for the purposes described.

10. In a device of the character described, an arm slotted vertically at one end, a journal member located against said end of the arm and slotted so that the slots of the arm and journal member come into conjunction with each other, and means located within said slots and associated with the arm and journal member for adjustably mounting the journal member for vertical movements with respect to the arm and holding the journal member against lateral movement with respect to the arm, said means being operable to clamp the journal member in any position to which it may be adjusted with respect to the arm, substantially as described.

In testimony whereof I affiX my signature.

EDGAR W. CLEVELAND. 

